Cisco Secure Firewall IKEv2 DoS

Memory exhaustion in Cisco Secure Firewall ASA and FTD IKEv2 implementations allows authenticated remote attackers with valid VPN credentials to trigger device reloads by sending crafted packets, disrupting firewall availability and downstream network services. The vulnerability stems from improper IKEv2 packet processing that fails to constrain memory allocation. No patch is currently available.

Unauthenticated remote attackers can trigger denial-of-service conditions in Cisco Secure Firewall ASA and Secure FTD Software by sending specially crafted IKEv2 packets that cause memory exhaustion due to improper memory management. A successful attack forces manual device reloads and can degrade network services across connected systems. No patch is currently available for this vulnerability.

Unauthenticated remote attackers can trigger a denial of service against Cisco Secure Firewall ASA and Secure FTD devices by sending specially crafted IKEv2 packets that trigger a memory leak in the IKEv2 parser. Exploitation exhausts system resources and forces manual device reboot to restore availability. No patch is currently available.